ISSN:
1352-8661
Keywords:
fastT 1 mapping
;
LL-EPI
;
dynamic Gd uptake
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
,
Physics
Notes:
Abstract Using ultrafastT 1 mapping (LL-EPI), the uptake from a bolus injection of Gd-DO3A (ProHance) into the sagittal sinus and a brain tumor has been monitored. The measurement of absoluteT 1 removes the possible error in uptake curves created fromT 1-weighted sequences caused by changes inT 2 * and simplifies the calculation of ProHance concentration. The LL-EPI sequence has an acquisition time of 1.2 s and is repeated every 4 s to obtain uptake curves with a high temporal and spatial resolution. Optimization of the LL-EPI sequence has been performed to obtain a precision of 5% over theT 1 range 0.3–1.2 s.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01705285
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